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71 Cards in this Set

  • Front
  • Back
acous/o
audi/o
hearing
aer/o
air or gas
aur/i
ot/o
ear
cerumin/o
wax
salping/o
eustachian tube or uterine tube
tympan/o
myring/o
eardrum
-acusis
hearing condition
external ear
outer structures of the ear that collect sound
pinna
auricle (little ear)
projected part of the external ear
(pinna = feather)
external or auditory meatus or canal
external passage for sounds is collected from the pinna to the tympanum
cerumen
a waxy substance secreted by glands located throughout the external canal
middle ear
structures in the middle of the ear that vibrate sound from the tympanic membrane to the inner ear
tympanic membrane (TM)
eardrum; drum-like structure that receives sound collected in the external auditory canal and amplifies it through the middle ear
malleus
hammer; first of the three auditory ossicles of the middle ear
incus
anvil; secondof the three auditory ossicles of the middle ear
stapes
stirrup; last of the three auditory ossicles of the middle ear
eustachian tube
auditory tube
tube connecting the middle ear to the pharynx (throat)
oval window
membrane that covers the opening between the middle ear and inner ear
inner ear
labyrinth
intricate, fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation; also sense body movement and position to maintain balance and equilibrium
(labyrinth = maze)
cochlea
coiled tubular structure of the inner ear that contains the organ of Corti
(cochlea = snail)
perilymph
fluid that fills the bony labyrinth of the inner ear
endolymph
fluid within the membraneous labyrinth of the inner ear
organ of Corti
structure located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
vestibule
middle part of the inner ear, in front of the semicircular canals and behind the cochlea, that contains the utricle and the saccule; functions to provide tbody balance and equilibrium
utricle
the larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
(uter = leather bag)
saccule
the smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear
(sacculus = small bag)
semicircular canals
three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement
otalgia
otodynia
earache
otorrhagia
bleeding from the ear
otorrhea
purulent drainage from the ear
tinnitus
a jingling; a ringing or buzzing int he ear
vertigo
a turning around; dizziness
otitis externa
inflammation of the external auditory meatus (canal)
cerumen impaction
excessive buildup of wax in the ear that often reduces hearing acuity; especially in elder persons
myringitis
tympanitis
inflammation of the eardrum
otitis media
inflammation of the middle ear
aerotitis media
inflammation of the middle ear from changes in atmospheric pressure; often occurs with frequent air travel
eustachian obstruction
blockage of the eustachian tube, usually as a result of infection, as in otitis media
osclerosis
hardening of the bony tissue int he ear
acoustic neuroma
benign tumor on the auditory nerve (8th cranial nerve) that causes vertigo, tinnitus, and hearing loss
labyrinthitis
inflammation of the labyrinth (inner ear)
Meniere disease
disorder of the inner ear resulting from an excessive buildup of endolymphatic fluid, causing episodes of vertigo, tinnitus, nausea, vomiting, and hearing loss; one or both ears can be affected, and attacks vary in both frequency and intensity (named after Prosper Meniere, the French physician who first described the condition)
deafness
general term for partial or complete loss of hearing
conductive hearing loss
hearing impairment caused by interference with sound or vibratory energy in the external canal, middle ear, or ossicles
sensorineural hearing loss
hearing impairment caused by lesions or dysfunction of the cochlea or auditory nerve
mixed hearing loss
combination of sensorineural and conductive hearing loss
presbyacusis
presbycusis
hearing impairment in old age
audiometry
process of measuring hearing
audiometer
instrument to measure hearing
audiogram
record of hearing measurement
audiologist
health professional who specializes in the study of hearing impairments
auditory acuity testing
physical assessment of hearing; useful in differentiating between conductive and sensorineural hearing loss
tuning fork
a two-pronged fork-like instrument that vibrates when struck; used to test hearing, especially bone conduction
brainstem auditory evoked potential (BAEP)
electrodiagnostic testing that uses computerized equipment to measure involuntary responses to sound within the auditory nervous system; commonly used to assess hearing in newborns
otoscopy
use of an otoscope to examine the external auditory canal and tympanic membrane
pneumatic otoscopy
otoscopic observation of the tympanic membrane as air is released into the external auditory meatus; immobility indicates the presence of middle ear effusion (fluid buildup), as occurs as a result of otitis media
tympanometry
measurement of the compliance and mobility (conductibility) of the tympanic membrane and ossicles of the middle ear by monitoring the response to external airflow pressures
microsurgery
surgery with the use of a microscope used on delicate tissue, such as the ear
myringotomy
tympanostomy
incision into the eardrum, most often for insertion of a small polyethylene (PE) tube to keep the canal open and prevent fluid buildup, such as occurs in otitis media
otoplasty
surgical repair of the external ears
stapedectomy
excision of the stapes to correct otosclerosis
tympanoplasty
vein graft of a scarred tympanic membrane to improve sound conduction
auditory prosthesis
any internal or external device that improves or substitutes for natural healing
hearing aid
an external amplifying device designed to improve hearing by more effective collection of sound into the ear
cochlear implant
an electronic device implanted in the cochlea that provides sound perception to patients with severe or profound sensorineural hearing loss in both ears
ear lavage
irrigation of the external ear canal, often to remove excessive buildup of cerumen
ear instillation
introduction of a medicated solution into the external canal usually administered by drop or drops in the affected ears
antibiotic
a drug that inhibits the growth of or destroys microorganisms; used to treat diseases caused by bacteria
antihistamine
a drug that blocks the effects of histamine
antiinflammatory
a drug that reduces inflammation
decongestant
a drug that reduces congestion and swelling of membranes, such as those of the nose and eustachian tube in an effection